source: trunk/src/xmlpatterns/api/qiodevicedelegate_p.h@ 1023

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the Qt Commercial License Agreement provided with the
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** Foundation and appearing in the file LICENSE.LGPL included in the
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//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.

#ifndef QIODEVICEDELEGATE_P_H
#define QIODEVICEDELEGATE_P_H

#include <QtCore/QTimer>
#include <QtNetwork/QNetworkReply>

QT_BEGIN_NAMESPACE

namespace QPatternist
{
    /**
     * This is read-only currently.
     */
    class QIODeviceDelegate : public QNetworkReply
    {
        Q_OBJECT
    public:
        QIODeviceDelegate(QIODevice *const source);

        virtual void abort();

        virtual bool atEnd() const;
        virtual qint64 bytesAvailable() const;
        virtual qint64 bytesToWrite() const;
        virtual bool canReadLine() const;
        virtual void close();
        virtual bool isSequential() const;
        virtual bool open(OpenMode mode);
        virtual qint64 pos() const;
        virtual bool reset();
        virtual bool seek(qint64 pos);
        virtual qint64 size() const;
        virtual bool waitForBytesWritten(int msecs);
        virtual bool waitForReadyRead(int msecs);

    protected:
        virtual qint64 readData(char *data, qint64 maxSize);

    private Q_SLOTS:
        void networkTimeout();
    private:
        enum
        {
            /**
             * 20 seconds expressed in milliseconds.
             */
            Timeout = 20000
        };

        QIODevice *const m_source;
        QTimer m_timeout;
    };
}

QT_END_NAMESPACE

#endif